Scavenger for water of condensation



Auggrlnlsze. Y 1,595,052

v .LB. T. A. LEGRAND SCAVENGER' FOR WATER 0F CONDENYSATION Filed March l2. 1924 a YV' Patented Aug. 17, 1926.

N nia-iran STATES' 1,596,015? PATENT oFF-ICE'.

JEAN BArTrsfrn trauern-inn ADRIEN LEGRAND, on rARIs, FRANCE, AssIeNoR 'ro SOCIT ADRIEN LEGRAND ET ein., ou PARIs, FRANCE.

SCAVENGER FOR WATER Of' CONDENSATION.

Application filed March 12, 1924'. Serial No. 698,815.

This invention relates to scavenging or condensation.

The apparatus, according to the invention `liu-notions by rectilinear or longitudinal expansion of the tubing lto which the device is connected, which tubing isfree to expand and contract longitudinally and open at the endfor the4 passage of steam, the closure being effected by meanso'l a relatively fixed obturating device located opposite to and beyond the opening ot' the tube independent of such tube and against which obturating device the scavenging' or ejecting nozzle is brought by the rectilinear or longitudinal expansion caused by the passage of steam through the said tubing preferably provided with a nozzleat its end.

In order that the invention may be clearly understood, -it will now be described with reference to the accompanying drawing, which shows scavenging or ejecting apparatus constructed according to the invention.

Fig. 1 is a longitudinal section of the apparatus with the obturating device carried by a bar or the like cemented into a wall.

Figs. 2 and 3 are respectively a front elevation and aplan illustrating a modilication, in which the obturating device is carried by a frame cemented into the ground.

The apparatus according to the invention comprises essentially a hxed part and a part adapted to be displaced through the effects of expansion. y

The iixed part comprises an iron bar or the like 1 cemented to a wall, as shown in Fig. 1 or carried by a framework 1a cemented into the ground, as shown in Figs. 2 and 3.

The bar or frame carries a screw threaded rod 2, the position of which is longitudinally adjustable with respect thereto by means o1' the two nuts 3 3 and the helical spring 4, compressed by the nut 5.

The screw threaded rod 2 has integral therewith a hexagonal head, provided with a socket joint in which engages the stem 7 0i' a conical valve 8. In order to prevent the stein 7 of the valve from leaving the head 6, the pin 9 is passed through the nut portion ot said head and engages in a channel 10 formed in the stem 7.

It is of course obvious that the conical valve 8 could be replaced by a spherical or other appropriately shaped valve.

The movable part which is adapted to be displaced under the influence or" the expansion comprises a hollow cylindrical body 11 secured to the end of the tubing` 17 into which screwsy a member 12 whichi's'short', and is pro-vided with a` conduit or passage 13. 'The end 14 of the. member 12 is so formed and located as to constitute a valve seat adapted to fit closely against thek conical valve 8 of the fixed part. The opposite end of the member 12 is screw threaded for the reception of a sleeve 16V which is intended to connect the body of the scavenging orl ejecting apparatus to the extremity of the tubing 17 through which the water passes from the apparatus to'be scavenged.

18 is a nipple for remo-ving the scavenged water connected by a sleeve 19 to an outlet pipe 20.

In order to render the body l1 steam and water tight, the said body is provided with a tubular piece 21 screwed into the same. Through this piece the stem 7 of the Valve member is adapted to pass. 22 are packing rings, 23 is a pressure ring, and 24 a screw cap.

The bar 1 of the frame 1a is mounted or cemented in position so as toallow for longitudinal displacement of the'body 11 of the scavenging or ejecti'ng apparatus longitudinally along the valve stem 7. This displace.- ment is equal to the expansion in a rectilinear orY longitudinal direction of the scavenging tube. It follows that when the steam supply is opened, the steam forces all the water of condensation contained in the sys.- tem forward and it is easily removed through the orifice 14 and the outlet pipe 20.

After the water of condensation passes away, the i steam causes the expansion in length of the straight portion of the tubing 17; and when it reaches its maximum length, the seat 14 comes against the conical valve producing a hermetic closingv of the same.

The valve has of course been so set and regulated previously by means of the nuts 3 and the spring 4 that this operation can takeplace, the said spring 4 being slightly compressed when the steam is at its highest pressure and consequently at its highest temperature.

When a small quantity of water accumulates againstA the conical valve 8, it cools the extremity of the tubing 17, so that there is a very slight contraction, which permits of the automatic and-continuous evacuation of the Water of condensation accompanied by a very small stream of steam.

claim:-V

`l. Mechanism for automatically discharging water of condensation from steam pipe lines, comprising a steam pipe for receiving water ot condensation, a vented casing connected to said steam pipe, a valve seat at one end of the casing; an alined valve in the opposite end otl the casing co-operatingvwith saidseat, vand means separate and independent ot' the casing and the pipe line to which said casing .is connected to hold the valve stationary and uninfiuenced by steam of the pipe line, said casing moving With respect to the valve solely by the expansion and contraction of the pipe line to which the mechanism is connected. Y

2. Mechanism for automatically discharging water ot condensation from steam pipe lines, comprising a steam pipe for receiving water of condensation, a vented casing connected to said steam pipe, a valve seat .at one end of said casing, an alined valve in the opposite end of the casing cooperating with said seat, means separate from the casing and the pipe to which said casing is connected, to hold the valve stationary and ,uninfluenced by the steam of the pipe line, and means to adjust said valve to and from the seat, said means being uninluenced by the steam from the pipe line.

3. Mechanism for automatically discharging Water of condensation from steam lines, which comprises a casing having a discharge orifice, a valve seat in one end of the casing arranged for connection to a steam pipe, an alined valve in the opposite end of the casing, cooperating with said seat, means independent of the casingto support the valve, and means to permit lateral deviation of the valve with they casing when the latter deviates from a straight line with the pipe to which it is to be connected.

l4. Mechanism for automatically dischargrecense ing Water ot condensation 'from steam lines,l which comprises a short tubular casing havinff a discharge orifice, a valve seat rigidly secured in one end and arranged for connection to'a steam pipe, an alined valve in the opposite end of said casing cooperating with said seat, a support for said valve independent of said casing, means at said support to adjust the valve to and from the seat, means to permit the valve to automatically displace upon excessive closing movement ot' the seat, and means to permit the valve to laterally move with the casing.

5. Mechanism for automatically discharging Water of condensation from steam lines, which comprises a short, tubular casing, a valve seat secured in one end, arranged for connection to a steam pipe, and having a discharge orifice, a valve in the opposite end of said casing having its stem projecting from the casing, a support separate from said casing, a. screw-threaded rod passing through the support, a nut on the rod, a spring between the nut and support and means movably connecting the ends of the rod and stem.

6. A scavenging or ejecting apparatus comprising a movable, eXpansible part comprising a steam tube for receiving Water ot condensation; a stationary element opposite said tube and fixed at a point independent of, separate from and located outside the tube; a valve carried by the stationary element, a stem carrying the valve, a socket joint for the valve stem, a screw-threaded rod carrying said joint the position of which rod can be adjusted with respect to said stationary element, a scavenging body carried by the movable part and sliding upon thc stem of the valve, a valve seat provided in said body for said valve, and a discharge nozzle for the water of condensation carried by the body of the scavenging apparatus.

ln testimony that I claim the foregoing as my invention, I have signed my name.

JEAN BAPTISTE THEOPHILE ADRIEN-LEGRAND. 

